/Engine/Plugins/Animation/ControlRig/Source/ControlRigEditor/Public/ControlRigSequencerEditorLibrary.h
Add a constraint possibly adding to sequencer also if one is open.
Returns the constraint if created all nullptr if not
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Editor Scripting | Sequencer Tools | Control Rig") static [UTickableConstraint](API\Runtime\Constraints\UTickableConstraint) * AddConstraint ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, ETransformConstraintType InType, [UTransformableHandle](API\Runtime\Constraints\UTransformableHandle) * InChild, [UTransformableHandle](API\Runtime\Constraints\UTransformableHandle) * InParent, const bool bMaintainOffset )